Part 1: As part of a drugresearch study,individualssuffering fromarthritistakean experimentalpain relief medication. Suppose 25% of all individuals who take the new drug experience a certain side effect.Random samples of size 75 people are selected to take the new drug. What proportion of the samples will have more than 25% of individuals who willexperience a certain side effectafter taking the new drug?

Part 2: Americans today are increasingly connected to the world of digital information while "on the go" via mobile devices. T-Mobile has the business objective of wanting to determine the proportion of subscribers who would upgrade to a new cellphone with improved features if it were made available at substantially reduced cost.Data are collected from a random sample of 400 subscribers.The results indicate that 120 of the subscribers would upgrade to a new cellphone at a reduced cost.At the 0.05 level of significance, is there evidence to suggest that more than 25% of the customers would upgrade to a new cellphone at a reduced cost.

Suppose Zstat = 2.31,findthe p-value for testing the claim.